Global Patent Index - EP 3623846 A1

EP 3623846 A1 20200318 - A SUPPLEMENTAL SYSTEM FOR A SATELLITE BASED APPROACH DURING LOW VISIBILITY CONDITIONS

Title (en)

A SUPPLEMENTAL SYSTEM FOR A SATELLITE BASED APPROACH DURING LOW VISIBILITY CONDITIONS

Title (de)

ZUSATZSYSTEM FÜR EINEN SATELLITENGESTÜTZTEN ANSATZ BEI SCHLECHTEN SICHTVERHÄLTNISSEN

Title (fr)

SYSTÈME SUPPLÉMENTAIRE POUR UNE APPROCHE PAR SATELLITE PENDANT DES CONDITIONS DE FAIBLE VISIBILITÉ

Publication

EP 3623846 A1 20200318 (EN)

Application

EP 19195759 A 20190905

Priority

US 201816127994 A 20180911

Abstract (en)

A method of supplementing a satellite based augmentation system approach during low visibility conditions is provided. The method includes acquiring satellite range measurements and additional measurements from at least one additional onboard independent sensor. Core sigma values are assigned for satellite range measurements and for each additional measurement from the at least one additional onboard independent sensor. A weighted position solution is determined using the acquired satellite range measurements, the acquired additional measurements and the assigned core sigma values. A discriminator is applied that utilizes vehicle positions derived from the acquired satellite range measurements and from the additional measurements to determine if a fault is present in the weighted positon solution. An alert is generated if an output of the discriminator is outside a set tolerance value needed for low visibility operation.

IPC 8 full level

G01S 19/48 (2010.01); G01S 19/20 (2010.01)

CPC (source: EP US)

G01S 19/15 (2013.01 - US); G01S 19/20 (2013.01 - EP); G01S 19/48 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3623846 A1 20200318; CA 3054850 A1 20200311; US 2020081137 A1 20200312

DOCDB simple family (application)

EP 19195759 A 20190905; CA 3054850 A 20190910; US 201816127994 A 20180911